Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1622 (TIRE PRESSURE MONITORING SYSTEM)REPAIR INSTRUCTIONSTIRE PRESSURE MONITOR RESET PROCEDUREUSING THE SCAN TOOL
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Using the Scan Tool
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Using the Scan Tool
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Adjust all tire pressures to the recommended kPa/psi.
- Install the scan tool.
- Turn ON the ignition, with the engine OFF.
- With the scan tool select Special Functions.
- Select TIM Reset.
- Press the Reset soft key.
- The LOW TIRE indicator will flash 3 times, then turn OFF.
- Use the scan tool in order to clear the TPM DTC.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.